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October 20, 2014

Homework Help: physics

Posted by Anonymous on Sunday, February 28, 2010 at 6:34pm.

A toaster uses a Nichrome heating wire. When the toaster is turned on at 20C, the initial current is 1.50 A. A few seconds later, the toaster warms up and the current has a value of 1.20 A. The average temperature coefficient of resistivity for Nichrome wire is 4.5 10-4 (C)-1. What is the temperature of the heating wire?

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